Granulation and Heat Recovery from Metallurgical Slags
The metals industry is under ever-increasing pressures to reduce its energy and resource intensity and environmental footprint. While major strides have been made in this regard by increased recycling of metals, the introduction of breakthrough technologies such as steel continuous casting, or energy recovery from waste gases, few options have remained to …
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Waste slags as sustainable construction materials: a …
The current review examines the use of various slags, including cupola slag, electric arc furnace slag (EAFS), steel furnace slag (SFS), and ground granulated blast furnace slag (GGBFS) in the development of sustainable construction materials considering the potential of such waste in greener concrete composites towards eco-friendly infrastructure.
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Treatments and Recycling of Metallurgical Slags …
Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process, resulting in the recycling of energy, water, and other byproducts. In this chapter, techniques for the treatment and recycling of …
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Introduction: Metallurgical Slags
Depending on the chemical and mineralogical compositions of slags, they may be disposed of as waste, which can then weather and release contaminants into the environment with the potential to impact the ecosystem …
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Waste slags as sustainable construction materials: a …
The current review examines the use of various slags, including cupola slag, electric arc furnace slag (EAFS), steel furnace slag (SFS), and ground granulated blast furnace slag …
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Use of waste copper slag, a sustainable material
The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used …
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IRON AND STEELMAKING SLAGS: ARE THEY …
USA and some other countries, slag is not classified as hazardous waste. Furthermore, slag shall be treated as resources and not as waste. Keywords: Slag, Steel, Blast Furnace, Hazardous Waste.
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(PDF) Industrial uses of slag. The use and re-use of iron and
The importance of understanding slags, their reusability, their specific roles and improvements in functions to lead a significant reduction in slag volumes in iron and steel industry is...
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Production of glass-ceramics from metallurgical slags
With the development of metallurgical industry, various slags are generated. On the one hand, the storage of metallurgical slags occupies a lot of land. ... In China, the annual production of EFFS exceeds 30 million tons, and it has become the fourth largest metallurgical waste after BFS, SS and red mud (Gu et al., 2019a, ...
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Recycling waste gypsum and calcium carbide slag for the …
The appropriate use of industrial solid waste is an effective method for alleviating environmental pollution. In this study, the potential of using desulfurized gypsum (DG), phosphogypsum (PG), gypsum dihydrate (G), and calcium carbide slag (CS) in the production of supersulfated cement (SSC) was investigated.
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Recycling waste gypsum and calcium carbide slag for the …
The appropriate use of industrial solid waste is an effective method for alleviating environmental pollution. In this study, the potential of using desulfurized gypsum (DG), …
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Introduction: Metallurgical slags
Slags are important by-products generated by ferrous and non-ferrous pyrometallurgical operations, with hundreds of millions of tonnes generated globally each year. Depending on the chemical and mineralogical compositions of slags, they may be disposed of as waste, which can then weather and release contaminants into the environment with the ...
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Industrial wastes: Fly ash, steel slag and phosphogypsum
The industrial production of energy (that involves combustion of coal), production of steel items and diammonium ammonium fertilizer generate a huge amount of wastes such as …
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Ecotoxicity Evaluation of Industrial Waste and Construction …
Steel slags, the main waste product from the steel industry, may have several reuse possibilities. Among others, building applications represent a crucial field. However, the potential impact of harmful substances on the environment should be assessed. The aim of this study was to assess the phytotoxicity of steel slags (SS) and concrete mixtures cast with a …
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Steel Slag
Steel slag is an industrial waste that is generated during the production of steel. In the production of steel, oxides of metal impurities in the iron combine with the flux (which is usually a mixture of lime and dolomite) to form a molten layer of steel slag that floats on top of the steel.
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Utilization of Industrial Waste Slags to Enhance Ground Waste …
Industrial waste slags including ferronickel (Greece) and fayalite (Finland) slags were mixed with ground waste concrete for the production of inorganic polymers (IPs). The effects of different parameters during alkaline activation such as solution concentration (6 to 12 M NaOH), curing temperature (60 to 80 °C), and aging period (7 to 28 days ...
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(PDF) Ecotoxicity Evaluation of Industrial Waste and …
Steel slags, the main waste product from the steel industry, may have several reuse possibilities. Among others, building applications represent a crucial field.
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Industrial wastes: Fly ash, steel slag and phosphogypsum
The industrial production of energy (that involves combustion of coal), production of steel items and diammonium ammonium fertilizer generate a huge amount of wastes such as fly ash (FA), steel slag (SS) and phosphogypsum (PG), respectively.
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A Review on Environmental Concerns and Technological
Figure 4 shows the total waste generation from the steel manufacturing process and how much industry and academic research got attention in various applications. Their chemical composition, along with BOF, EAF, and LF slag, is shown in Table 2.It is apparent that the BOF and EAF slags have almost identical chemical components, but a higher amount of …
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IRON AND STEELMAKING SLAGS: ARE THEY …
Hazardous Waste and Their Disposal", it was stated that granulated slag arising from the manufacture of iron and steel (B1200, Annex IX, List B) or in general most of slags from
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Chapter 6 Iron and steel slags: from wastes to by …
Worldwide about 620 mio. tons of different slags are produced yearly as byproducts of iron and steel production. Their utilisation for different purposes, but mainly in the construction sector, is a significant contribution to resource …
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Exploring the Potential for Steel Slags Valorisation in an Industrial …
The aim of this study is to investigate and analyse the supply chain that deals with the management of steel slags at meso-level, in order to investigate the state of implementation of industrial symbiosis (IS), its potential and its improvement.
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Utilization of steel slag waste as construction material: A …
Slags of varying compositions are available from a diverse range of industrial sources. The obtained slags are pre-treated to recover the remaining metal. These preprocessed slags are utilized in the production of cement and cement blocks, as well as roadbed aggregate [3]. The primary contributor to slag production internationally is the iron ...
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Application of steel slags, ferronickel slags, and copper mining waste
Waste production by industrial sectors can harmfully impact the environment, and its amount has been increasing globally (Aljerf, 2018b).Environmental Protection Agency in the United States (US EPA) showed that in 2020 the US industrial economic sector produced about 24% of total greenhouse gas emissions (EPA, 2023a).It includes production by burning fuels …
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Exploring the Potential for Steel Slags Valorisation in an …
The aim of this study is to investigate and analyse the supply chain that deals with the management of steel slags at meso-level, in order to investigate the state of …
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Introduction: Metallurgical Slags
Depending on the chemical and mineralogical compositions of slags, they may be disposed of as waste, which can then weather and release contaminants into the environment with the potential to impact the ecosystem and humans.
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Introduction: Metallurgical slags
Slags are important by-products generated by ferrous and non-ferrous pyrometallurgical operations, with hundreds of millions of tonnes generated globally each year. Depending on …
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Characteristics and environmental aspects of slag: A review
Slags are surface materials that are present in both industrial and residential settings and reuse of land containing slag is commonplace. Therefore, the potential risk to human health from slag needs to be understood and comparison to generic screening guidelines is a useful first step in guiding management decisions.
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Chapter 6 Iron and steel slags: from wastes to by-products …
Worldwide about 620 mio. tons of different slags are produced yearly as byproducts of iron and steel production. Their utilisation for different purposes, but mainly in the construction sector, is a significant contribution to resource conservation and CO2 emissions reduction.
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Steel Slag
Steel slag is an industrial waste that is generated during the production of steel. In the production of steel, oxides of metal impurities in the iron combine with the flux (which is usually a mixture …
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